Green’s Dictionary of Slang

1. (US, also aba-fangool! fangul! fungoo!) an excl. of contempt or dismissal, e.g. go fuck yourself!

1947		(con. 1944) J.H. Burns Gallery (1948) 288: Ah, fungoo and ya signorinas, the patients answered.
1957		(con. 1944) A. Myrer Big War 247: ‘Ah, fungoo and your fresh water showers,’ Ricarno yelled.
1975		E. Torres Carlito’s Way 29: I’d think, maybe I’m gonna be the first made guy P.R., and I’d say, ‘Fangul’ and ‘Yer mudder’s cunt’ with the best of them.
1977		E. Torres Q&A 146: ‘I’ll get out quick, but let me get out of the way. Don’t shoot me, abafongul!’.
1979		E. Torres After Hours 180: Aba-fangool! Did I say that? Don’t talk like a cafone, awright?
1988		F. Exley Last Notes from Home 62: The guy would turn back, smile, wave and say, ‘Yeah, bah-fungoo or whatever!’.
2001		(con. 1964–8) J. Ellroy Cold Six Thousand 466: Tran flipped Pete off. The wop stiff-arm — il bah-fungoo.
2005		Mad mag. Feb. 24: Take the bucs and the points, huh? Fungoo!!
2017		D. Winslow The Force [ebook] ‘Bless me, Father, for I have sinned.’ ‘Va fangul’.
[2021		J. Ellroy Widespread Panic 231: The fone fungooed my whole day].

2. attrib. use of sense 1.

1995

J. Ellroy Amer. Tabloid 155: Sal gave him the bah-fungoo sign.